<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>边框的复合写法</title>
    <style>
     div {
            width: 300px;
            height: 200px;
            /* border-width: 5px;
            border-style: solid;
            border-color: pink; */
            /* 边框的复合写法 简写:  */
            /* border: 5px solid pink; */
            /* 上边框 */
            border-top: 5px solid pink;
            /* 下边框 */
            border-bottom: 10px dashed purple;
        }
    </style>
</head>
<body>
    <div></div>
</body>
</html>